Version bump to 6.0.2.8

Change-Id: I7b083a0a083fae487d4b48bef5e79371b3173f7a
Support f2fs format

This allows devices like Moto X, which have f2fs formated
data partition to be used with CWM recovery. Format data
works as enteded as well as backup/restore.

Change-Id: I8b56252cc462c9e9ff2824bc817ea00ddd4ccacc